Electrically actuated pulsator pump



Fb. 25, ma Q RAWG 2,032,145

ELECTRICALLY ACTUATED PULSATOR PUMP Filed May 29, 1935 Patented Feb. 25, 1936 UNITED STATES PATENT OFFICE Ccile Ramig, Suresnes, France Application May 29, 1935, Serial No. 24,143

. In France June 5, 1934 4 Claims.

electromagnet, the rapid variations in the direction of the magnetic flux produce a vibratory movement in the above-mentioned plunger member. This movement produces in the chamber a rapid succession of compressions and expansions, that is to say, of deliveries and suctions of the liquid. The latter is thus displaced, through the.

chamber, from the source of the liquid and is delivered through the outlet means.

The accompanying drawing shows diiierent constructional forms of pumps embodying the novel features of the invention.

Figs. 1 and 2 are a vertical section and a perspective View, respectively, of a practical form of construction comprising a jet.

Fig. 3 shows a modification in which the pump causes the liquid to circulate.

Fig. 4 shows another modification.

Fig. 5 is a section taken on the line :r3-m of Fig. 4.

Fig. 6 is a further modification.

Fig. 7 shows a device serving to prevent any back pressure in the suction pipe.

According to Fig. 1, the apparatus comprises essentially a U-shaped electromagnet I embedded in a suitable insulating material 2, for example resin or a hardened fatty body contained in a box 3 on which there is arranged, in a detachable and eventually adjustable manner, a cover 4 apertured at 5.

Between the cover 4 and the insulating body 2,

t5 are mounted two resilient discs 6, 'I, for example of solid, hollow or sponge rubber.

Between these discs is gripped the rim 8 of a socket 9 passing through the orice 5, the socket 9 being internally threaded to accommodate by screwing a tube I0 with a flanged base II and to the upper extremity of which is secured a jet I2.

Below the tube I0 there opens, by one extremity I3, .a pipe I4 which may or may not comprise a valve and the other extremity I5 of which projects more or less outside the box or casing.

(Cl. 10S-53) The wires I6 supplying the current to the electromagnet pass through a plug I'I.

The apparatus thus comprises a rigid whole formed by the parts 9, I0, I2 and which is resiliently held between the discs 6 and 'I.

The variations of the magnetic iiux of the electromagnet cause the unit 9, IU, I2 to vibrate between the springs formed by the discs 6, 1. These vibrations resolve themselves into alternating movements of the flanges II and 8 towards 10 and away from the outlet I3 of the tube I4, producing, as a piston would do, alternate suctions and deliveries.

If the apparatus is placed in a liquid so that the whole box and its cover are below the surface of 15 the liquid, the tube I4 and the chamber I8 are lled with liquid and the rapid movements of the vibratory unit 9, I0, I2 cause the ascent of the liquid into the tube I0, which liquid then escapes through the jet I2 up tol a height which can be 20 regulated by screwing the tube I0 more or less into the socket 9.

According to the modification shown in Fig. 3, the pipe I4a is extended by a tube I4b which, whether it terminates in a jet or not, can deliver 25 at a certain distance from the apparatus. The suction pipe I4a may be provided with a valve if it is intended that the apparatus should cause the liquid to rise in a column. The pipes |421, I4b communicate with the chamber I8 by a common 30 orice I3a and an adjustable solid member or plug I0a is screwed in the socket 9.

In this arrangement, the socket 9 and the part or plug Il!a could be replaced by a diaphragm.

It would be possible to employ the device as a 35 double acting pump by utilizing, on each side of the diaphragm provided as above or at each extremity of the vibrator, a pipe or tube similar to that at I4a-I4b with an orifice I3a communicating with a chamber similar to the one I8 of 40 Fig. 3.

In the construction shown in Figs. 4 and 5, the liquid reaches the chamber I8 by a channel I9 passing between the ends of the branches of the electromagnet I. This channel decreases in depth 45 but increases in width from the centre up to its ends, so that its area of cross-section remains constant.

This channel communicates with the outside by one or more orifices 20 in the box 3. 50

This arrangement is preferred when the apparatus is to be immersed in the liquid, only the jet I2 emerging therefrom.

But any suitable pipe system, shown dotted at 2| in Fig. 6, could be utilized to bring the liquid 55 to the apparatus from' a source more or less distant from the point where the apparatus is 11ocated. Y Y

Thus, in order to avoid any back pressure in the pipes YIIIEL or 2I through which the liquid is drawn, the pipes could be made to comprise, be-

Vfore the suction valve Ia (Fig. 7) a sleeve 23 of resilient material, for example, of rubber.. The same effect could, however, be obtained by using a rubber tube IllaV or 2l which would expand at the moment of the closingof the valve Ia. Any otherA similar means could be employed. Y

If the apparatus is not intended to be immersed,

the insulation and the mounting of the electromagnet I may be ensured, not by the material 2,

but by a moulded cr stamped part in which is formed the channel I9.

By screwingthe cover 4 more or less tightly,

' the rings 6 and I are compressed to` a greater or lesser degree and there is thus imparted to the apparatus the degree of regulation desired.

With the object of xng the tube I0 in the socket 9 after each adjustment there may be used a rubber ring 23 which is compressedby means of a nut-24.

The jet I2 may comprise a nipple 25 and be 'held in the desired'position by means of a nut 26.

If the apparatus shown in Fig. 6 is made to act Y as a water circulating pump, the jet I2 and the nut I3 are replaced by a plug screwed on the tubeY I9, as already provided in Fig. 3, a pipe 22 being placed oppositethe one at 2l.

The electromagnet may be of any suitable 75l shape, for example, of the screened or armored type having a single central bobbin. In the central polar mass of this electromagnet is'made a recess to take the liquid pipe, this recessucorre-y sponding to the Zones I3, I8 or I9.

In all thedevices above described, the boX or casing Scould be of any suitable shape adapted to the usefulor decorative end in View.

The eld of application of these apparatus may be very wide. By Way of example, their usemay be cited as water pumps, Vornamental or like water `jets'or'for the circulation of refrigerating water,

as oil pumps or petrol orY water pumpsior use with automobiles, aircraft, ships or the like. Y

'I'he use of apparatus 0i' this kind can also be pointed out as air humidiers, for example in apartments provided with central heating where Yeach apparatus would be located in a reservoir operate without them. Y

What Iclaim is: Y y 1. A ,pumpV comprising a vibrating member,

eiectro-magnetic meansaresilient element bee tween said vibrating member andY said electrol magnetic means serving to support said vibrating member in operative relationship to said electromagnetic means so that when an alternating curt will also beY CII rent is passed through said electro-magneticA means said memberis vibrated, said Vresilient element being hollow and `being closed at its ends by said vibrating member and'said electro-magnetic member whereby there is provided a pump chamber, and fluid inlet and outlet means leading to and from said pumpV chamber.

2. A pump as set forth in claim. 1 including means carried by and adjustable relative to the vibrating member into and from the pump cham# ber to vary the volumetric capacitythere'of.

3. A pump asset forth in claimrl including aV check Valve in the fluid. inlet means, and yieldable seat means -for said check valve to absorb back pISSSllle.

" 4. A pump as set forth in claim l inwhich the electro-magnetic means includes a body of material in which the electro-magnet isV imbedded and against which the hollow resilientV element seats, and in which said bodyV of material is`provided Vwith a channel forming the inlet and outlet means tc Yand from Vthe pump chamber.

i Y .CE'CILE RAMiG. 

